1# SPDX-License-Identifier: GPL-2.0 2all: 3 4include ../lib.mk 5 6.PHONY: all all_32 all_64 warn_32bit_failure clean 7 8UNAME_M := $(shell uname -m) 9CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32) 10CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c) 11CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh $(CC) trivial_program.c -no-pie) 12 13TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \ 14 check_initial_reg_state sigreturn iopl ioperm \ 15 test_vdso test_vsyscall mov_ss_trap \ 16 syscall_arg_fault 17TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ 18 test_FCMOV test_FCOMI test_FISTTP \ 19 vdso_restorer 20TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering 21# Some selftests require 32bit support enabled also on 64bit systems 22TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall 23 24TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED) 25TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY) 26ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11) 27TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED) 28endif 29 30BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32) 31BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64) 32 33BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) 34BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) 35 36CFLAGS := -O2 -g -std=gnu99 -pthread -Wall 37 38# call32_from_64 in thunks.S uses absolute addresses. 39ifeq ($(CAN_BUILD_WITH_NOPIE),1) 40CFLAGS += -no-pie 41endif 42 43define gen-target-rule-32 44$(1) $(1)_32: $(OUTPUT)/$(1)_32 45.PHONY: $(1) $(1)_32 46endef 47 48define gen-target-rule-64 49$(1) $(1)_64: $(OUTPUT)/$(1)_64 50.PHONY: $(1) $(1)_64 51endef 52 53ifeq ($(CAN_BUILD_I386),1) 54all: all_32 55TEST_PROGS += $(BINARIES_32) 56EXTRA_CFLAGS += -DCAN_BUILD_32 57$(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t)))) 58endif 59 60ifeq ($(CAN_BUILD_X86_64),1) 61all: all_64 62TEST_PROGS += $(BINARIES_64) 63EXTRA_CFLAGS += -DCAN_BUILD_64 64$(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t)))) 65endif 66 67all_32: $(BINARIES_32) 68 69all_64: $(BINARIES_64) 70 71EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) 72 73$(BINARIES_32): $(OUTPUT)/%_32: %.c 74 $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm 75 76$(BINARIES_64): $(OUTPUT)/%_64: %.c 77 $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl 78 79# x86_64 users should be encouraged to install 32-bit libraries 80ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01) 81all: warn_32bit_failure 82 83warn_32bit_failure: 84 @echo "Warning: you seem to have a broken 32-bit build" 2>&1; \ 85 echo "environment. This will reduce test coverage of 64-bit" 2>&1; \ 86 echo "kernels. If you are using a Debian-like distribution," 2>&1; \ 87 echo "try:"; 2>&1; \ 88 echo ""; \ 89 echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \ 90 echo ""; \ 91 echo "If you are using a Fedora-like distribution, try:"; \ 92 echo ""; \ 93 echo " yum install glibc-devel.*i686"; \ 94 exit 0; 95endif 96 97# Some tests have additional dependencies. 98$(OUTPUT)/sysret_ss_attrs_64: thunks.S 99$(OUTPUT)/ptrace_syscall_32: raw_syscall_helper_32.S 100$(OUTPUT)/test_syscall_vdso_32: thunks_32.S 101 102# check_initial_reg_state is special: it needs a custom entry, and it 103# needs to be static so that its interpreter doesn't destroy its initial 104# state. 105$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static 106$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static 107